Felt pack construction of pens



Aug. 28, 1962 s. N. ROSENTHAL FELT PACK CONSTRUCTION OF PENS OriginalFiled April 30. 1957 INVENTOR.

SIDNEY N. ROSEN BY 2 THAL Gm ATTORNEYS United States Patent Claims. (Cl.15-563) This application, a division of copending application Serial No.656,138 of April 30, 1957, now abandoned, relates to pens of the typedisclosed in my United States Patent No. 2,713,176 of July 19, 1955, andparticularly relates to an improved capillary and felt pack or inkcarrier construction for the same.

For an understanding of such construction, reference should be had tothe accompanying drawing.

In such drawing:

FIG. 1 shows in elevation a pen of the invention;

FIG. 2 is a vertical section view of the same;

FIG. 3 is a fragmentary enlarged section View;

FIGS. 4, 5 and 6 are cross-section views on lines 44, 55 and 6-6 of FIG.2.

The pen hereof comprises a glass bottle 10 having a reduced neck 11externally threaded at 12 to receive an internally threaded cap 14having threads 16 and containing gaskets 18 and 20. These have centralholes alined wtih a central hole of cap 14. In these alined holes is anib holder 22 carried by cap 14 and secured in place and securing thegaskets in place by its inner flange 24 and its outer flange or crimp26.

In nib holder 22 is a felt nib 28 which projects out of the nib holder22 at both ends, with the lower end in contact with a felt pack orabsorbent ink carrier 30 whose upper end 31 is laterally compressed inneck 11 to reduce the size of the capillaries in carrier 30 at portion31.

A thin aluminum cover 32 seals nib holder 22 and a shrunken plasticshroud 34 seals cap 14 and bottle 10.

The sides of the felt pack 30 aretchanneled at 35 to provide airpassages to the space 36 above the felt pack 31 and above the tightlycompressed upper portion 31, squeezed laterally by the reduced neck 11of the bottle.

Air passages from such space through the nib holder are provided byspaces 37 at the sides of the nib 28 which does not quite fill the nibholder transversely as shown in FIG. 4 where it is held in nib holder 22by detents 38.

Now having described the pen hereof, reference should be had to theclaims which follow:

1. A pen comprising a vapor confining open end reservoir having areduced neck portion, an absorbent compressible ink saturated carriertherein, a cap secured to the open end of said reservoir and having anib holder extending therefrom, an absorbent nib in said holderextending beyond the end thereof and in contact with said carrier, saidcarrier having a transverse dimension at its outer end greater than thatat said neck and being arranged with said outer end compressibly engagedby and extending into said reduced neck portion to maintain said carrierin operative ink supplying position in the reservoir.

2. A pen comprising an ink reservoir having a body portion and an openneck portion of less diameter than the body portion, a cap for said neckportion having a nib holder extending therefrom, an ink-conducting nibmounted in said nib-holder having one end extending therefrom and itsother end extending only into the neck portion of the reservoir, acompressible ink-absorbent capillary carrier within said reservoir andhaving a compressed portion extending into said neck portion and inforced contact with the inner surface thereof and with the adjacent endof said nib, whereby the capillary passages in the portion of thecarrier within said neck portion are relatively restricted in relationto the capillary passages of that portion of the carrier within the bodyof the reservoir to control the capillary flow of ink to the nib.

3. The combination of elements recited in claim 2 and wherein airpassages are provided in the ink-carrier to establish communicationbetween the body of the reservoir, the neck of the reservoir and thenib-holder.

4. The combination of elements recited in claim 2 and wherein airpassages are provided in the nib-holder to establish communicationbetween the neck portion of the reservoir and the atmosphere.

5. The combination of elements recited in claim 2 and wherein airpassages are provided in the nib holder to establish communicationbetween the neck portion of the reservoir and the atmosphere, andwherein air passages are provided in the ink carrier to establishcommunication between the body of the reservoir, the neck of thereservoir and the nib holder.

References Cited in the file of this patent UNITED STATES PATENTS211,104 Mulford Jan. 7, 1879 1,576,533 Mikeleitis Mar. 16, 19262,243,752 Dunaway May 27, 1941 2,416,596 Rosenthal Feb. 25, 19472,547,541 Rosenthal Apr. 3, 1951 2,713,176 Rosenthal July 19, 19552,732,824 Brown Jan. 31, 1956 Patented Aug. 28, 1952'

